209-1-25290-3

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Circuit Breakers

209-1-25290-3 Application Field and Working Principle

Circuit breakers are devices designed to protect electrical systems, equipment, and components from damage due to overcurrents, or excessive electrical current. They are an essential component of any electrical system, and they can provide a valuable line of defense against potential damage.Circuit breakers can be divided into two types: air and thermal. Air circuit breakers employ air as an insulating medium, while thermal circuit breakers use heat as the primary insulating factor. The 209-1-25290-3 circuit breaker belongs to the air variety, and is suitable for a range of applications, including 13.8kV, Stair Case Duty, and Tan Delta Testing.When a 209-1-25290-3 circuit breaker is in use, it does not disconnect the existing flow of electricity and break the circuit directly. Instead, it interrupts the circuit by reducing the level of current in the system. This is achieved by the movement of the contacts inside the breaker, which are instantly disconnected when the set limit on the current is exceeded. This happens due to the current-sensing coil on the breaker. A surge of current in the system causes the coil to switch, which in turn triggers the release of energy from within the contacts and moves them apart, creating an electric arc. This action, in turn, allows a second current-sensing coil to take over and push the contacts back into their original position, effectively breaking the circuit. The 209-1-25290-3 circuit breaker also offers a range of advanced features that make it suitable for higher voltage applications. These include a high DC interrupting rating, quick-make and quick-break capability, and a variable contact pressure and force. The variable contact pressure allows the breaker to be used in a range of temperatures, while the quick-make and quick-break features allow the contacts to be moved instantly and reduce the total clearing time.The 209-1-25290-3 circuit breaker is also equipped with several built-in safety features, including an interlock and a guarded housing. The interlock serves to prevent access to the contacts, while the guarded housing prevents accidental contact with live components. In conclusion, the 209-1-25290-3 circuit breaker is a reliable and effective device for protecting electrical systems from damage caused by overcurrents. It has a wide range of applications, and its advanced features make it suitable for higher voltage applications. In addition, it is equipped with a range of safety features that ensure its safe operation.

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